Im trying to trigger a configuration everytime I create a new subsite on multisite environment, like so:

add_action('init', 'mgh_set_events_option', 99); 
function mgh_set_events_option(){
  $mgh_is_set_options = get_option('mgh_is_set_options');
    if(!$mgh_is_set_options){
        print_r('setting options');
        update_option( 'mgh_is_set_options', true );
    }
}

The problem is that the ‘init’ action does not trigger in some sites from our multisite instance. There is any principle of why this happens?